Electro Magnetic Induction And Alternating Currents Question 95

Question: In an ac circuit, the current is given by i=5sin,(100,tπ2) and the ac potential is V=200sin,(100),volt. Then the power consumption is [CBSE PMT 1995; MH CET 1999; CPMT 2002]

Options:

A) 20 watts

B) 40 watts

C) 1000 watts

D) 0 watt

Show Answer

Answer:

Correct Answer: D

Solution:

P=Vicosφ Phase difference φ=π2P=zero



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